The OneSignal – Web Push Notifications plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.8.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete OneSignal metadata for arbitrary posts.
History

Thu, 16 Apr 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Onesignal
Onesignal onesignal-free-web-push-notifications
Wordpress
Wordpress wordpress
Vendors & Products Onesignal
Onesignal onesignal-free-web-push-notifications
Wordpress
Wordpress wordpress

Thu, 16 Apr 2026 11:45:00 +0000

Type Values Removed Values Added
Description The OneSignal – Web Push Notifications plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 3.8.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete OneSignal metadata for arbitrary posts.
Title OneSignal – Web Push Notifications <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Post Meta Deletion via 'post_id'
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-16T14:00:56.681Z

Reserved: 2026-02-24T20:34:14.733Z

Link: CVE-2026-3155

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-16T12:16:07.507

Modified: 2026-04-16T12:16:07.507

Link: CVE-2026-3155

cve-icon Redhat

No data.